Allow to overwrite JSON-RPC response value

[jcubic]

I have an idea for a new feature for jQuery Terminal

So the idea is to allow hijacking the response from JSON-RPC and allow any async request and result of the user response will be processed. Not only allow mutating the response.

This is needed to create a seamless experience using JWT refresh token (issue #829).

When the user type a command and it throws an error because the access token expires, you should be able to send a new HTTP request or new JSON-RPC call to refresh the token and save a new access token in localStorage:

Not sure how to simplify the API. Maybe there is a need for a new handler that will replace response and request single event that will get request and response objects and return a new response asynchronously.

$('body').terminal('service.php', {
    rpc(req, res) {
        if (res.error && res.error.message === 'Access token expired') {
            return new Promise(resolve => {
                $.jrpc('service.php', 'refresh', [], (message) => {
                    const new_token = message.result;
                    this.set_token(new_token);
                    req.params[0] = new_token;
                    $.jrpc('service.php', req.method, req.params, resolve);
                });
            });
        }
    }
}, {
  login: true
});

Right now when the token expired there is a visible error on the terminal.

[jcubic]

Released in 2.37.0